The Evolution of Endurance By Carl ZimmerNov. 17, 2004 Physiologic adaptations may have made humans better runners
Sexual Selection Seen in Primate Genes By John BohannonNov. 8, 2004 Gene that affects sperm coagulation evolved faster in promiscuous primates
A Whiff of Things to Come By Erik StokstadNov. 4, 2004 Ancient fish fossil helps explain the evolution of air-breathing nostrils
Single Origin for Eyes? By Elizabeth PennisiOct. 28, 2004 Unexpected similarities between eyes of marine worms and humans suggest single origin
Cave Fish Go Blind on Purpose By Rachel EhrenbergOct. 13, 2004 Loss of eyesight isn't an accident--it's part of the plan
Why Two Sexes Are Better Than One By Menno SchilthuizenOct. 6, 2004 Simulation finds that the perils of inbreeding are what made males and females
Tale of Human Origins, Told by Lice By Elizabeth PennisiOct. 5, 2004 Louse DNA suggests close contact between early humans
When Bigger Isn't Better By Elizabeth PennisiOct. 1, 2004 Too devoted to meat, large carnivores specialize themselves out of existence
Evolution's No-Fly Zone By Menno SchilthuizenSep. 22, 2004 Wingless insects challenge tenet of evolutionary biology
Competition Boosts Chimp Comprehension By Gretchen VogelSep. 21, 2004 Chimpanzees understand competitors' grabs but not helpful hints
Men Migrated More By Elizabeth CulottaSep. 21, 2004 Ancient men spread their genes farther than women did
Breath of Life at the Top of the World By Mary BeckmanSep. 16, 2004 Babies of Tibetan women with oxygen-rich blood have a survival advantage
Redrafting the Tree of Life By Elizabeth PennisiSep. 8, 2004 Genetic exchange may have kept tree of life from sprouting early branches
How Invading Lizards Flourish By Kathleen WongSep. 8, 2004 Multiple migrations help explain genetic diversity
Wagging Parrot Tongues By Fiona ProffittSep. 7, 2004 Bird talk is uttered in much the same way as humans